Sample records for takehiro tokuda yusuke
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1989-12-01
Hiroshi Kawarada, Yusuke OF THE HYDROGEN ENVIRONMENTS IN DIAMOND AND Mori, and Akio Hiraki , Osaka University, DIAMOND-LIKE FILMS. Y.M. LeGrice, E.C...Canon Inc. Tamura, Hiratsuka, Kanagawa, Japan; Y. SYMPOSIUM F presentations Yokota, Y. Mori, J. Wei, and A. Hiraki , may be viewed simultaneously Osaka...INTERFACE, Yusuke Mor, Hiroshi Kawarada, Yoshihiro Yokota, and Akio Hiraki , Osaka University, Department of Electrical Engineering, Facul- ty of
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1991-10-01
Real - Time Operating System , Hide Tokuda, et al., Carnegie Mellon University "* MARUTI, Hard Real - Time Operating System , Ashok...Architecture, Fred J. Pollack and Kevin C. Kahn, BiiN 10:00 - 10:20 BREAK 10:20 - 12:20 Session VII - Chair: James G. Smith, ONR • A Real - Time Operating System for...Detailed Description * POSIX: Detailed Description * V: Detailed Description * Real - Time Operating System
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Processor Capacity Reserves for Multimedia Operating Systems
1993-05-01
Stefan Savage, and -ideyuki Tokuda May 1993 CMU-CS-93-157 School of Computer Science Camegie Mellon University Pittsburgh, PA 15213 Abstract Multimedia...and provide feedback so that the estimate can be adjusted if necessaty . For non-periodic activities that are to be limited by a processor percentage...comments and suggestions: Brian Bershad, Ragunathan Rajkumar, and the members of the ART group and Mach group at CMU. 13 References [1] D. P
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Spatial Hearing in Echoic Environments
2008-02-29
Erick Gallun Graduate Students: Scott Bressler (Boston University, BME ), Antje Ihlefeld (Boston University, CNS), Kosuke Kawakyu, (MIT, SHBT), Ross...Maddox (Boston University, BME ), Yusuke Naka (Boston University, AME), Erol Ozmeral (Boston University, BME ), Satyavarta (Boston University, CNS...Madhu Shashanka (Boston University, CNS), and Dali Wang (Boston University, BME ) Undergraduates: Sarah Chu (MIT), Eric Larson (Michigan State
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NASA Astrophysics Data System (ADS)
Takehiro, Shin-ichi
2015-04-01
We investigate the influence of surface displacement on fluid motions induced by horizontally heterogeneous Joule heating in the inner core. The difference between the governing equations and those of Takehiro (2011) is the boundary conditions at the inner core boundary (ICB). The temperature disturbance at the ICB coincides with the melting temperature, which varies depending on the surface displacement. The normal component of stress equalizes with the buoyancy induced by the surface displacement. The toroidal magnetic field and surface displacement with the horizontal structure of Y20 spherical harmonics is given. The flow fields are calculated numerically for various amplitudes of surface displacement with the expected values of the parameters of the core. Further, by considering the heat balance at the ICB, the surface displacement amplitude is related to the turbulent velocity amplitude in the outer core, near the ICB. The results show that when the turbulent velocity is on the order of 10-1 -10-2 m/s, the flow and stress fields are similar to those of Takehiro (2011), where the surface displacement vanishes. As the amplitude of the turbulent velocity decreases, the amplitude of the surface displacement increases, and counter flows from the polar to equatorial regions emerge around the ICB, while flow in the inner regions is directed from the equatorial to polar regions, and the non-zero radial component of velocity at the ICB remains. When the turbulent velocity is on the order of 10-4 -10-5 m/s, the radial component of velocity at the ICB vanishes, the surface counter flows become stronger than the flow in the inner region, and the amplitude of the stress field near the ICB dominates the inner region, which might be unsuitable for explaining the elastic anisotropy in the inner core.
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Pan, Liang-Yu; Chiang, Tung-Chuan; Weng, Yu-Chu; Chen, Wen-Neng; Hsiao, Shu-Chuan; Tokuda, Makoto; Tsai, Cheng-Lung; Yang, Man-Miao
2015-05-05
Recent field surveys show that galls induced by Daphnephila spp. (Cecidomyiidae) on Machilus spp. (Lauraceae) are common in Taiwan, yet only five species, four leaf-gall inducers and one stem-gall inducer on M. thunbergii, have been named in the past. Here we describe a new species, Daphnephila urnicola sp. nov. Chiang, Yang & Tokuda, inducing urn-shaped galls on leaves of both M. zuihoensis and M. mushaensis. Comparisons of D. urnicola populations on M. zuihoensis and on M. mushaensis, indicate that they belong to one species, a result supported by gall midge morphology, life-history traits, gall shape and structure, the developmental process of gall tissues, fungal associations, and DNA-sequencing data. Size and structure of the gall operculum was found to differ between M. zuihoensis and M. mushahaensis.
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Parallel filtering in global gyrokinetic simulations
NASA Astrophysics Data System (ADS)
Jolliet, S.; McMillan, B. F.; Villard, L.; Vernay, T.; Angelino, P.; Tran, T. M.; Brunner, S.; Bottino, A.; Idomura, Y.
2012-02-01
In this work, a Fourier solver [B.F. McMillan, S. Jolliet, A. Bottino, P. Angelino, T.M. Tran, L. Villard, Comp. Phys. Commun. 181 (2010) 715] is implemented in the global Eulerian gyrokinetic code GT5D [Y. Idomura, H. Urano, N. Aiba, S. Tokuda, Nucl. Fusion 49 (2009) 065029] and in the global Particle-In-Cell code ORB5 [S. Jolliet, A. Bottino, P. Angelino, R. Hatzky, T.M. Tran, B.F. McMillan, O. Sauter, K. Appert, Y. Idomura, L. Villard, Comp. Phys. Commun. 177 (2007) 409] in order to reduce the memory of the matrix associated with the field equation. This scheme is verified with linear and nonlinear simulations of turbulence. It is demonstrated that the straight-field-line angle is the coordinate that optimizes the Fourier solver, that both linear and nonlinear turbulent states are unaffected by the parallel filtering, and that the k∥ spectrum is independent of plasma size at fixed normalized poloidal wave number.
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NASA Astrophysics Data System (ADS)
Takahashi, Y. O.; Takehiro, S.; Sugiyama, K.; Odaka, M.; Ishiwatari, M.; Sasaki, Y.; Nishizawa, S.; Ishioka, K.; Nakajima, K.; Hayashi, Y.
2012-12-01
Toward the understanding of fluid motions of planetary atmospheres and planetary interiors by performing multiple numerical experiments with multiple models, we are now proceeding ``dcmodel project'', where a series of hierarchical numerical models with various complexity is developed and maintained. In ``dcmodel project'', a series of the numerical models are developed taking care of the following points: 1) a common ``style'' of program codes assuring readability of the software, 2) open source codes of the models to the public, 3) scalability of the models assuring execution on various scales of computational resources, 4) stressing the importance of documentation and presenting a method for writing reference manuals. The lineup of the models and utility programs of the project is as follows: Gtool5, ISPACK/SPML, SPMODEL, Deepconv, Dcpam, and Rdoc-f95. In the followings, features of each component are briefly described. Gtool5 (Ishiwatari et al., 2012) is a Fortran90 library, which provides data input/output interfaces and various utilities commonly used in the models of dcmodel project. A self-descriptive data format netCDF is adopted as a IO format of Gtool5. The interfaces of gtool5 library can reduce the number of operation steps for the data IO in the program code of the models compared with the interfaces of the raw netCDF library. Further, by use of gtool5 library, procedures for data IO and addition of metadata for post-processing can be easily implemented in the program codes in a consolidated form independent of the size and complexity of the models. ``ISPACK'' is the spectral transformation library and ``SPML (SPMODEL library)'' (Takehiro et al., 2006) is its wrapper library. Most prominent feature of SPML is a series of array-handling functions with systematic function naming rules, and this enables us to write codes with a form which is easily deduced from the mathematical expressions of the governing equations. ``SPMODEL'' (Takehiro et al., 2006
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NASA Astrophysics Data System (ADS)
Takehiro, Shin-ichi; Sasaki, Youhei
2018-03-01
Penetration of steady magneto-hydrodynamic (MHD) disturbances into an upper strongly stratified stable layer excited by MHD thermal convection in rotating spherical shells is investigated. The theoretical model proposed by Takehiro (2015) is reexamined in the case of steady fluid motion below the bottom boundary. Steady disturbances penetrate into a density stratified MHD fluid existing in the semi-infinite region in the vertical direction. The axis of rotation of the system is tilted with respect to the vertical. The basic magnetic field is uniform and may be tilted with respect to the vertical and the rotation axis. Linear dispersion relation shows that the penetration distance with zero frequency depends on the amplitude of Alfvén wave speed. When Alfvén wave speed is small, viscous diffusion becomes dominant and penetration distance is similar to the horizontal scale of the disturbance at the lower boundary. In contrast, when Alfvén wave speed becomes larger, disturbance can penetrate deeper, and penetration distance becomes proportional to the Alfvén wave speed and inversely proportional to the geometric average of viscous and magnetic diffusion coefficients and to the total horizontal wavenumber. The analytic expression of penetration distance is in good agreement with the extent of penetration of mean zonal flow induced by finite amplitude convection in a rotating spherical shell with an upper stably stratified layer embedded in an axially uniform basic magnetic field. The theory expects that the stable layer suggested in the upper part of the outer core of the earth could be penetrated completely by mean zonal flows excited by thermal/compositional convection developing below the stable layer.
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TwiMed: Twitter and PubMed Comparable Corpus of Drugs, Diseases, Symptoms, and Their Relations.
Alvaro, Nestor; Miyao, Yusuke; Collier, Nigel
2017-05-03
Work on pharmacovigilance systems using texts from PubMed and Twitter typically target at different elements and use different annotation guidelines resulting in a scenario where there is no comparable set of documents from both Twitter and PubMed annotated in the same manner. This study aimed to provide a comparable corpus of texts from PubMed and Twitter that can be used to study drug reports from these two sources of information, allowing researchers in the area of pharmacovigilance using natural language processing (NLP) to perform experiments to better understand the similarities and differences between drug reports in Twitter and PubMed. We produced a corpus comprising 1000 tweets and 1000 PubMed sentences selected using the same strategy and annotated at entity level by the same experts (pharmacists) using the same set of guidelines. The resulting corpus, annotated by two pharmacists, comprises semantically correct annotations for a set of drugs, diseases, and symptoms. This corpus contains the annotations for 3144 entities, 2749 relations, and 5003 attributes. We present a corpus that is unique in its characteristics as this is the first corpus for pharmacovigilance curated from Twitter messages and PubMed sentences using the same data selection and annotation strategies. We believe this corpus will be of particular interest for researchers willing to compare results from pharmacovigilance systems (eg, classifiers and named entity recognition systems) when using data from Twitter and from PubMed. We hope that given the comprehensive set of drug names and the annotated entities and relations, this corpus becomes a standard resource to compare results from different pharmacovigilance studies in the area of NLP. ©Nestor Alvaro, Yusuke Miyao, Nigel Collier. Originally published in JMIR Public Health and Surveillance (http://publichealth.jmir.org), 03.05.2017.
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Buden, Donald W.; Helgen, Kristofer M.; Wiles, Gary J.
2013-01-01
Abstract The taxonomy, biology, and population status of flying foxes (Pteropus spp.) remain little investigated in the Caroline Islands, Micronesia, where multiple endemic taxa occur. Our study evaluated the taxonomic relationships between the flying foxes of the Mortlock Islands (a subgroup of the Carolines) and two closely related taxa from elsewhere in the region, and involved the first ever field study of the Mortlock population. Through a review of historical literature, the name Pteropus pelagicus Kittlitz, 1836 is resurrected to replace the prevailing but younger name Pteropus phaeocephalus Thomas, 1882 for the flying fox of the Mortlocks. On the basis of cranial and external morphological comparisons, Pteropus pelagicus is united taxonomically with Pteropus insularis “Hombron and Jacquinot, 1842” (with authority herein emended to Jacquinot and Pucheran 1853), and the two formerly monotypic species are now treated as subspecies — Pteropus pelagicus pelagicus in the Mortlocks, and Pteropus phaeocephalus insularis on the islands of Chuuk Lagoon and Namonuito Atoll. The closest relative of Pteropus pelagicus is Pteropus tokudae Tate, 1934, of Guam, which is best regarded as a distinct species. Pteropus pelagicus pelagicus is the only known resident bat in the Mortlock Islands, a chain of more than 100 atoll islands with a total land area of <12 km2. Based on field observations in 2004, we estimated a population size of 925–1,200 bats, most of which occurred on Satawan and Lukunor Atolls, the two largest and southernmost atolls in the chain. Bats were absent on Nama Island and possibly extirpated from Losap Atoll in the northern Mortlocks. Resident Mortlockese indicated bats were more common in the past, but that the population generally has remained stable in recent years. Most Pteropus phaeocephalus pelagicus roosted alone or in groups of 5–10 bats; a roost of 27 was the largest noted. Diet is comprised of at least eight plant species, with
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NASA Astrophysics Data System (ADS)
Takir, Driss; Hibbitts, Charles A.; Le Corre, Lucille; Emery, Joshua P.; Kitazato, Kohei; Sugita, Seiji; Nakauchi, Yusuke
2017-10-01
Japan Society for the Promotion of Science Core-to-Core program (International Network of Planetary Sciences) for supporting Yusuke Nakauchi. Part of this work has been supported by NASA Hayabusa2 Participating Scientist grant NNX17AL02G (PI: Takir).
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NASA Astrophysics Data System (ADS)
2013-04-01
university Nicholson, Amy University of Maryland Nishida, Yusuke Los Alamos National Laboratory Petreczky, Peter Brookhaven National Laboratory Sakai, Yuji RIKEN Sasaki, Takahiro Kyushu University Schmidt, Christian University of Bielefeld Scorzato, Luigi ECT* - Trento, Italy Shi, Zhifeng The College of William and Mary Shuryak, Edward Stony Brook University Skokov, Vladimir Brookhaven National Laboratory Strickland, Michael Gettysburg College Teaney, Derek Stony Brook University Wang, Qun University of Science and Technology of China Xu, Nu CCNU/LBNL Xu, Xiao-Ming Shanghai University Yamamoto, Naoki Institute for Nuclear Theory Conference photograph
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[Biologics and mycobacterial diseases].
Tsuyuguchi, Kazunari; Matsumoto, Tomoshige
2013-03-01
Various biologics such as TNF-alpha inhibitor or IL-6 inhibitor are now widely used for treatment of rheumatoid arthritis. Many reports suggested that one of the major issues is high risk of developing tuberculosis (TB) associated with using these agents, which is especially important in Japan where tuberculosis still remains endemic. Another concern is the risk of development of nontuberculous mycobacterial (NTM) diseases and we have only scanty information about it. The purpose of this symposium is to elucidate the role of biologics in the development of mycobacterial diseases and to establish the strategy to control them. First, Dr. Tohma showed the epidemiologic data of TB risks associated with using biologics calculated from the clinical database on National Database of Rheumatic Diseases by iR-net in Japan. He estimated TB risks in rheumatoid arthritis (RA) patients to be about four times higher compared with general populations and to become even higher by using biologics. He also pointed out a low rate of implementation of QuantiFERON test (QFT) as screening test for TB infection. Next, Dr. Tokuda discussed the issue of NTM disease associated with using biologics. He suggested the airway disease in RA patients might play some role in the development of NTM disease, which may conversely lead to overdiagnosis of NTM disease in RA patients. He suggested that NTM disease should not be uniformly considered a contraindication to treatment with biologics, considering from the results of recent multicenter study showing relatively favorable outcome of NTM patients receiving biologics. Patients with latent tuberculosis infection (LTBI) should receive LTBI treatment before starting biologics. Dr. Kato, a chairperson of the Prevention Committee of the Japanese Society for Tuberculosis, proposed a new LTBI guideline including active implementation of LTBI treatment, introducing interferon gamma release assay, and appropriate selection of persons at high risk for
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Katayama, Yusuke; Kitamura, Tetsuhisa; Kiyohara, Kosuke; Iwami, Taku; Kawamura, Takashi; Izawa, Junichi; Gibo, Koichiro; Komukai, Sho; Hayashida, Sumito; Kiguchi, Takeyuki; Ohnishi, Mitsuo; Ogura, Hiroshi; Shimazu, Takeshi
2017-09-11
control group and 10.93% (32,819/300,395) in the smartphone app group. No change over time in the number of difficulties in hospital acceptance was found before the introduction of the smartphone app (regression coefficient: -2.43, 95% CI -5.49 to 0.64), but after its introduction, the number of difficulties in hospital acceptance gradually decreased by month (regression coefficient: -11.61, 95% CI -14.57 to -8.65). Sharing information between an ambulance and a hospital by using the smartphone app at the scene was associated with decreased difficulty in obtaining hospital acceptance. Our app and findings may be worth considering in other areas of the world where emergency medical information systems with IT are needed. ©Yusuke Katayama, Tetsuhisa Kitamura, Kosuke Kiyohara, Taku Iwami, Takashi Kawamura, Junichi Izawa, Koichiro Gibo, Sho Komukai, Sumito Hayashida, Takeyuki Kiguchi, Mitsuo Ohnishi, Hiroshi Ogura, Takeshi Shimazu. Originally published in JMIR Mhealth and Uhealth (http://mhealth.jmir.org), 11.09.2017.
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Furukawa, Toshi A; Horikoshi, Masaru; Fujita, Hirokazu; Tsujino, Naohisa; Jinnin, Ran; Kako, Yuki; Ogawa, Sei; Sato, Hirotoshi; Kitagawa, Nobuki; Shinagawa, Yoshihiro; Ikeda, Yoshio; Imai, Hissei; Tajika, Aran; Ogawa, Yusuke; Akechi, Tatsuo; Yamada, Mitsuhiko; Shimodera, Shinji; Watanabe, Norio; Inagaki, Masatoshi; Hasegawa, Akio
2018-01-11
tasks, engaged in different types of activities, and also filled in more cognitive restructuring worksheets than the latter. Activities such as "test-drive a new car," "go to a coffee shop after lunch," or "call up an old friend" were found to be particularly rewarding. All cognitive restructuring strategies were found to significantly decrease the distress level, with "What would be your advice to a friend who has a similar problem?" found more helpful than some other strategies. The CBT program offered via smartphone and connected to the remote server is not only effective in alleviating depression but also opens a new avenue in gathering information of what and how each participant may utilize the program. The activities and strategies found useful in this analysis will provide valuable information in brush-ups of the program itself and of mobile health (mHealth) in general. Japanese Clinical Trials Registry UMIN CTR 000013693; https://upload.umin.ac.jp/cgi-open-bin/ctr_e/ ctr_view.cgi?recptno=R000015984 (Archived by WebCite at http://www.webcitation.org/6u6pxVwik). ©Toshi A Furukawa, Masaru Horikoshi, Hirokazu Fujita, Naohisa Tsujino, Ran Jinnin, Yuki Kako, Sei Ogawa, Hirotoshi Sato, Nobuki Kitagawa, Yoshihiro Shinagawa, Yoshio Ikeda, Hissei Imai, Aran Tajika, Yusuke Ogawa, Tatsuo Akechi, Mitsuhiko Yamada, Shinji Shimodera, Norio Watanabe, Masatoshi Inagaki, Akio Hasegawa. Originally published in JMIR Mental Health (http://mental.jmir.org), 11.01.2018.
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[Preventive measures against tuberculosis in working facilities and companies].
Suzuki, Kiminori; Satou, Ken
2007-03-01
The health care program in working facilities and companies have played a significant part in prevention of tuberculosis. However, the ordinary national tuberculosis survey policy was abolished in April, 2005 and the tuberculosis survey for salary-earners is on the brink of drastic change. In this symposium the current status of the prevailing survey of tuberculosis in working facilities and companies was reviewed and the future direction of the tuberculosis survey in comparison to that in lung cancer survey was discussed. 1. Epidemiological trends of tuberculosis from the tuberculosis surveillance data: Masako OHMORI (Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association). The estimated rate of tuberculosis case discovery by periodical mass screening in the working facilities was 0.033% and it was higher than that in general adult population. The detection rate of tuberculosis in nurses who suffered from tuberculosis reached 40.4% by an aid of mass X-ray screening and 8.7% by contact tracing. The risk of onset of the disease was 4.3 times higher nurses than in general at the same years of age. The importance of infection control measures in the medical facilities was emphasized. 2. Current status and problems in tuberculosis control in a large-sized company: Yusuke NAKAOKA (Department of Occupational Health, Osaka Railway Hospital, West Japan Railway Company). Some preventive modalities against TB such as periodical medical check-up and awareness programs have been done for the purpose of prevention in our company. The prevalence of the disease has significantly reduced in number. The specific circumstances in large-sized company should be taken into consideration, and it is important for company workers and health professionals to recognize their roles in preventing the infectious disease. 3. Are there any differences between clinical cases and control people working for small-sized companies in the onset of tuberculosis?: Osamu NAKASHIMA, Kohei
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PREFACE: 11th IAEA Technical Meeting on H-mode Physics and Transport Barriers
NASA Astrophysics Data System (ADS)
Takizuka, Tomonori
2008-07-01
and Fusion Center, USA) F Ryter (Max-Plank-Institut für Plasmaphysik, Germany) H Saimaru (University of Tsukuba, Japan) R Sakamoto (National Institute for Fusion Science, Japan) Y Sakamoto (Japan Atomic Energy Agency, Japan) M Sasaki (University of Tokyo, Japan) Y Shi (Institute of Plasma Physics, Chinese Academy of Science, China) A Shimizu (National Institute for Fusion Science, Japan) T Shimozuma (National Institute for Fusion Science, Japan) P B Snyder (General Atomics, USA) C Suzuki (National Institute for Fusion Science, Japan) H Takahashi (National Institute for Fusion Science, Japan) Y Takahashi (Nagoya University, Japan) Y Takeiri (National Institute for Fusion Science, Japan) H Takenaga (Japan Atomic Energy Agency, Japan) M Takeuchi (Nagoya University, Japan) T Takizuka (Japan Atomic Energy Agency, Japan) N Tamura (National Institute for Fusion Science, Japan) K Tanaka (National Institute for Fusion Science, Japan) S Tokuda (Japan Atomic Energy Agency, Japan) S Tokunaga (Kyushu University, Japan) G Turri (Centre de Recherches en Physique des Plasmas, EPFL, Switzerland) H Urano (Japan Atomic Energy Agency, Japan) H Utoh (Tohok University, Japan) K Uzawa (Kyoto University, Japan) M Valovic (EURATOM/UKAEA Fusion Association, UK) L Vermare (Max-Plank-Institut für Plasmaphysik, Germany) F Watanabe (Nagoya University, Japan) M Yagi (Kyushu University, Japan) Y Yamaguchi (University of Tsukuba, Japan) K Yamazaki (Nagoya University, Japan) M Yokoyama (National Institute for Fusion Science, Japan) M Yoshida (Japan Atomic Energy Agency, Japan) M Yoshinuma (National Institute for Fusion Science, Japan)